A 6-part series.
“Your child has autism.” Experts say that far too many parents are hearing those words today.
An exhaustive study of autism in one community has found that the disorder is far more common than suggested by earlier research.
The brains of children who have autism spectrum disorder are larger than those of other children, a difference that seems to arise before they are 2 years old, according to a new study.
A new study of twins suggests that environmental factors, including conditions in the womb, may be at least as important as genes in causing autism.

